Purge the App Launcher code from Windows.

ui/app_list/views/app_list_main_view.cc

Index: ui/app_list/views/app_list_main_view.cc
diff --git a/ui/app_list/views/app_list_main_view.cc b/ui/app_list/views/app_list_main_view.cc
index 20ec0975be727ed93c483a0de1b6d5d2aa8ed883..9ca1860ac60ddabc29c433e85ac46e4c4c1907e6 100644
--- a/ui/app_list/views/app_list_main_view.cc
+++ b/ui/app_list/views/app_list_main_view.cc
@@ -160,10 +160,6 @@ void AppListMainView::Close() {
   contents_view_->CancelDrag();
 }
 
-void AppListMainView::Prerender() {
-  contents_view_->Prerender();
-}
-
 void AppListMainView::ModelChanged() {
   pending_icon_loaders_.clear();
   model_->RemoveObserver(this);
@@ -292,12 +288,6 @@ void AppListMainView::ActivateApp(AppListItem* item, int event_flags) {
     item->Activate(event_flags);
 }
 
-void AppListMainView::GetShortcutPathForApp(
-    const std::string& app_id,
-    const base::Callback<void(const base::FilePath&)>& callback) {
-  delegate_->GetShortcutPathForApp(app_id, callback);
-}
-
 void AppListMainView::CancelDragInActiveFolder() {
   contents_view_->apps_container_view()
       ->app_list_folder_view()